#pragma once
#include "Student.h"
#include <stdio.h>
#include <iostream>
#include "System.h"
#include <iomanip>
#include <string.h>


extern int student_num, class_num, stu_order;

int display_menu();

void display_stu(Manage_System *sys, Student* stu);

int display_sys(Manage_System* sys);

void print_course(Student* stu);

void check_rank(Manage_System *sys, int stu_order);


